Home / 151,901.36-209,623.22-83,918.35

Finding the Fourth Proportional to 151,901.36, 209,623.22 and 83,918.35

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Solution

The fourth proportional to 151,901.36, 209,623.22 and 83,918.35 is: 115,806.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,901.36 : 209,623.22 = 83,918.35 : x
  2. Step 2: Convert to fraction form
    151,901.36/209,623.22 = 83,918.35/x
  3. Step 3: Cross multiply
    151,901.36x = 209,623.22 × 83,918.35
  4. Step 4: Simplify right side
    151,901.36x = 17,591,234,429.82
  5. Step 5: Solve for x
    x = 17,591,234,429.82/151,901.36
  6. Step 6: Final answer
    x = 115,806.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.